CN106163170A - Housing - Google Patents

Housing Download PDF

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Publication number
CN106163170A
CN106163170A CN201510567025.4A CN201510567025A CN106163170A CN 106163170 A CN106163170 A CN 106163170A CN 201510567025 A CN201510567025 A CN 201510567025A CN 106163170 A CN106163170 A CN 106163170A
Authority
CN
China
Prior art keywords
air inlet
fresh air
housing
protuberance
full
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201510567025.4A
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Chinese (zh)
Inventor
张月祥
滕之海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nanjing Chervon Industry Co Ltd
Original Assignee
Nanjing Chervon Industry Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nanjing Chervon Industry Co Ltd filed Critical Nanjing Chervon Industry Co Ltd
Publication of CN106163170A publication Critical patent/CN106163170A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a kind of housing, housing is formed with at least one fresh air inlet;Housing is formed with a protuberance in fresh air inlet edge, and this protuberance is extended to opposite side by the side of the full-size line of fresh air inlet;Housing is formed with one in fresh air inlet edge and is being projected on full-size line, more than protuberance, the two ends distance projected in the two ends distance being projected on full-size line projection with protuberance corresponding recess, recess.Housing disclosed by the invention can realize preferable cooling effect and maximized can avoid the entrance of foreign body.

Description

Housing
Technical field
The present invention relates to a kind of housing, be specifically related to a kind of housing with fresh air inlet.
Background technology
Electric tool, battery bag or charger produce heat during it uses, and generation are damaged if cannot dispel the heat in time, affect user and use.In order to solve heat dissipation problem, the housing of electric tool, battery bag or charger is usually provided with the fresh air inlet for cooling.But existing fresh air inlet can not well stop that foreign body enters housing.
Summary of the invention
A kind of housing, housing is formed with at least one fresh air inlet;Further, housing is formed with a protuberance in fresh air inlet edge, and this protuberance is extended to opposite side by the side of the full-size line of fresh air inlet;Housing is formed with one in fresh air inlet edge and is being projected on full-size line, more than protuberance, the two ends distance projected in the two ends distance being projected on full-size line projection with protuberance corresponding recess, recess.
Further, the ultimate range that housing is separated by fresh air inlet is less than the full-size of fresh air inlet.
Further, protuberance is positioned at the side of straight line at the ultimate range place that housing is separated by fresh air inlet.
Further, protuberance includes one section of circular arc, and recess includes one section of circular arc, and the arc radius of recess is more than the arc radius of protuberance.
Further, fresh air inlet number more than or equal to 4 and is at least arranged in two row of protuberance setting in opposite direction.
A kind of fan and the combination of housing, housing is formed with at least one fresh air inlet;Further, housing is formed with receiving chamber, and fan is arranged on receiving intracavity, and fan is provided with the flabellum for the multiple separation guiding air to flow;Housing is formed with a protuberance in fresh air inlet edge, and this protuberance is extended to opposite side by the side of the full-size line of fresh air inlet;Housing is formed with one in fresh air inlet edge and is being projected on full-size line, more than protuberance, the two ends distance projected in the two ends distance being projected on full-size line projection with protuberance corresponding recess, recess.
Further, the ultimate range that housing is separated by fresh air inlet is less than the full-size of fresh air inlet.
Further, the minimum range that fresh air inlet separates more than or equal to 0.25 and is less than or equal to 1 with the ratio of the minimum interval of adjacent two flabellums.
Further, protuberance includes one section of circular arc, and recess includes one section of circular arc, and the arc radius of recess is more than the arc radius of protuberance.
Further, the ultimate range that fresh air inlet separates is more than or equal to 0.5mm and less than or equal to 2mm.
Accompanying drawing explanation
Fig. 1 show electric tool and the structural representation of battery bag;
Fig. 2 show the structural representation of charger;
Fig. 3 show the structural representation of a kind of housing of the present invention;
The contour line of the fresh air inlet of the housing that Fig. 4 show in Fig. 3 constitutes schematic diagram;
The schematic shapes of the fresh air inlet of the housing that Fig. 5 show in Fig. 3;
Fig. 6 show the schematic shapes of a kind of fresh air inlet;
Fig. 7 show the schematic shapes of another kind of fresh air inlet;
The arrangement schematic diagram of multiple fresh air inlets of the housing that Fig. 8 show in Fig. 3.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention made concrete introduction.
With reference to shown in Fig. 1; electric tool 200 and battery bag 300; battery bag 300 for providing electric energy to electric tool 200 so that electric tool 200 implementation tool function; in order to make the parts of electric tool 200 constitute an entirety and they are constituted protection; electric tool 200 can include a tool housing; similarly; battery bag 300 is in order to be core element one entirety of composition and make user can not directly contact core element or other internal circuits; ensureing user security, battery bag 300 can include a battery pack housing.
When actually used, the motor or other circuit that are contained in tool housing can distribute heat, if tool housing completely encloses, can affect heat radiation, be that electric tool 200 easily produces fault.For battery bag 300, core element will necessarily produce substantial amounts of heat when electric discharge owing to internal resistance exists, so battery pack housing is considered as the battery pack housing internal gas flow circulation impact on heat radiation when design.
With reference to shown in Fig. 2, charger 100 is a kind of for battery bag 300 charging device, and in order to protect and accommodate the charging circuit of inside, charger 100 can include charger 100 housing.When charging, charger 100 also can produce substantial amounts of heat, because charger 100 housing should also be as having the through hole making airflow, if this through hole is used for allowing airflow into charger 100 enclosure interior, then defining this through hole is fresh air inlet, otherwise is defined as exhaust vent.
Electric tool 200 shown in complex chart 1 and Fig. 2, battery bag 300 and charger 100, it can be seen that in field of power tools, in order to realize heat radiation, need when designing housing to design fresh air inlet and exhaust vent.
For housing fresh air inlet and exhaust vent, though the biggest flow that can improve of single area, too increase foreign body and enter the probability of housing.
Simultaneously, the hole of such as circular hole and other centrosymmetry shapes, they need the area reducing oneself could realize filtering the effect of foreign body, but thus can affect flow, the longest and the narrowest holes such as the hole for such as strip, they can have bigger area ensure flow simultaneously further through controlling width size exclusion foreign body, but for same long and narrow foreign body, just it is good at discharging housing once enter in housing and changing direction, causes foreign matter accumulation.
As according to the housing 10 with fresh air inlet 11 shown in Fig. 3, in view, visible side is outside, and it is internal that air-flow is entered housing 10 by outside by fresh air inlet 11, and for comparing exhaust vent 12, fresh air inlet 11 is internal with greater need for foreign body can be stoped to enter housing 10.
In order to realize this purpose, as shown in Figure 4, shape of cross section referred herein refers to that fresh air inlet 11 is being perpendicular to the shape that the edge of fresh air inlet 11 on the face in direction is run through in hole to the shape of cross section of fresh air inlet 11 as shown in Figure 3.
The edge of fresh air inlet 11 includes: multiple circular arcs are constituted, and at least include two centers of circle and are positioned at collinear circular arc a, e.The direction of circular arc a, e is identical, and the line MN along the center of circle is arranged symmetrically with.Further, four sections of straight line portioies b, d, f, h and other two sections of circular arcs c, g are also included.With f, h respectively at the both sides two of two sections of circular arcs a, e even, circular arc c is connected the other end of b, d and f, h respectively with circular arc g for four sections of straight line portioies b, d.Further fresh air inlet 11 is arranged symmetrically with about the line MN in circular arc a, e center of circle.And circular arc g is tangent with straight line portion f, h, circular arc c is tangent with straight line portion b, d, and circular arc a is tangent with straight line portion b, h, and circular arc e is tangent with straight line portion d, f.
As it is shown in figure 5, protuberance 111 part that to be the edge of fresh air inlet 11 prominent in hole, at least include one section of circular arc e.Recess 112 is the shape substantially becoming a depression that fresh air inlet 11 edge is formed, and at least includes one section of circular arc a.For preferred version as shown in Figure 4, protuberance 111 is made up of the part of circular arc e, straight line portion f, d and circular arc g, c.Recess 112 is made up of the part of circular arc a, straightway b, h and circular arc g, c.
The full-size that full-size is fresh air inlet 11 of the line of any two points on fresh air inlet 11 edge.By constituting the full-size line that line segment is fresh air inlet 11 that maximum sized two points are formed.As in figure 2 it is shown, line segment AB is full-size line.
Protuberance 111 is corresponding with recess 112.It is L1 that recess 112 projects to the two ends distance of the projection on full-size line AB, and it is L2 that protuberance 111 projects to the two ends distance of the projection on full-size line AB.
Protuberance 111 is extended to opposite side i.e. protuberance 111 by the side of the full-size line of fresh air inlet 11 and extends beyond line segment AB entrance opposite side from the side of line segment AB.Recess 112 is being projected on full-size line the two ends distance i.e. L1 of projection more than L2. in the two ends distance being projected on full-size line projection more than protuberance 111
In order to realize a bigger incoming air area, it is ensured that cooling effectiveness, one recess 112 of the edge designs of fresh air inlet 11d.Reduce the area of fresh air inlet 11 in order to avoid bigger foreign body enters design one simultaneously.Simultaneously in order to be to avoid long and narrow object to enter fresh air inlet 11, using being relatively small in size of protuberance 111, the relatively large sized structure of recess 112, protuberance 111 extends to opposite side to the prominent side from full-size line, recess 112 direction.
Fresh air inlet 11 ' as shown in Figure 6, it is made up of multiple arc sections and multiple straightway, has protuberance 111 ', and recess 112 '.Its protuberance 111 ' is positioned at the side of full-size line A ' B ', does not i.e. extend beyond full-size line A ' B ' and enters opposite side, it is clear that the direction that cannot play the foreign body edge longitudinal direction i.e. full-size line A ' B ' stopping that length is longer enters fresh air inlet 11 '.
For realizing a bigger incoming air area, it is ensured that cooling effectiveness, avoid foreign body to enter the situation causing accumulation simultaneously.Preferably using fresh air inlet 11 as shown in Figure 5, specifically, housing 10 is formed with a protuberance 111 in fresh air inlet 11 edge, and this protuberance 111 is extended to opposite side by the side of the full-size line of fresh air inlet 11;Housing 10 is formed with one in fresh air inlet 11 edge and is being projected on full-size line AB, more than protuberance 111, the two ends distance projected in the two ends distance being projected on full-size line AB projection with protuberance 111 corresponding recess 112, recess 112.
The ultimate range that housing 10 is separated by fresh air inlet 11 refers to that the line of any two points on fresh air inlet 11 edge and line are positioned at the ultimate range in hole.Line is positioned at hole, refers in addition to two end points of line, and other points on line are all located in hole.
As it is shown in figure 5, line segment CD is the ultimate range that fresh air inlet 11 separates.Although more than line segment CD but it has part to intersect with protuberance 111, i.e. without falling in hole to its length for line segment EF.Therefore line segment EF is not the ultimate range that fresh air inlet 11 separates.
The ultimate range that housing 10 is separated by fresh air inlet 11 is less than the length of line segment AB less than the full-size i.e. length of line segment CD of fresh air inlet 11.Avoid the opening in fresh air inlet 11 full-size, make length be slightly less than the maximum sized object of fresh air inlet 11 and can not enter housing 10 inside, make fresh air inlet 11 avoid the connection of straight line at full-size A, B point-to-point transmission simultaneously, realize the curve of a bending, increase fresh air inlet 11 area, improve cooling effectiveness.
Protuberance 111 is positioned at the side of the straight line at the ultimate range place that housing 10 is separated by fresh air inlet 11.I.e. protuberance 111 is positioned at the side of straight line CD.To ensure the area of a relatively large fresh air inlet 11, improve cooling effectiveness.
Fresh air inlet 11 ' as shown in Figure 7 ', it is made up of multiple arc sections and multiple straightway, has protuberance 111 ' ', and recess 112 ' '.Recess 112 ' ' include one section of circular arc a ' ', protuberance 111 ' ' including one section of circular arc e ' ', its circular arc a ' ' radius is less than circular arc e ' ' radius.At fresh air inlet 11 ' shown in Fig. 7, ' with the fresh air inlet 11 shown in Fig. 5 in the case of equal areas, it is clear that fresh air inlet 11 ' shown in Fig. 7 ' its graininess foreign matter size allowed access into is bigger, increases the risk that foreign body enters.
For realizing in the case of equal incoming air area, farthest avoid the entrance of foreign body, preferably use fresh air inlet 11 as shown in Figure 5.Specifically, protuberance 111 includes one section of circular arc e, and recess 112 includes one section of circular arc a, and the circular arc e radius of recess 112 is more than the circular arc a radius of protuberance 111.
In order to improve cooling effect, charger 100 generally arranges multiple fresh air inlet 11 for cooling.When using protuberance 111 arrangement in opposite direction multirow, further reduce object and enter the probability in housing 10 from fresh air inlet 11.
Specifically, as shown in Figure 8, fresh air inlet 11 number more than or equal to 4 and is at least arranged in two row of protuberance 111 setting in opposite direction.
For the flowing of air-flow, improve cooling effect further.Fan 20 it is provided with in housing 10.And for the housing 10 with fan 20, it is to avoid foreign body enters and causes damage particularly important to fan 20.
Specifically, fresh air inlet 11 housing 10 is formed with receiving chamber, and fan 20 is arranged on receiving intracavity, and fan 20 is provided with the flabellum 21 for the multiple separation guiding air to flow;Housing 10 is formed with a protuberance 111 in fresh air inlet 11 edge, and this protuberance 111 is extended to opposite side by the side of the full-size line of fresh air inlet 11;Housing 10 is formed with one in fresh air inlet 11 edge and is being projected on full-size line, more than protuberance 111, the two ends distance projected in the two ends distance being projected on full-size line projection with protuberance 111 corresponding recess 112, recess 112.
If the minimum range separated for fresh air inlet 11 reduces this distance, then decreasing the air quantity entering fresh air inlet 11, reducing cooling effect, if instead increasing the minimum range that fresh air inlet 11 separates, in then the foreign body of large-size enters housing 10, impact is normal to be used.
As the preferred scheme of one, fresh air inlet 11 as shown in Figure 4, specifically, the minimum range that fresh air inlet 11 separates is more than or equal to 0.5mm and less than or equal to 2mm.
Special shape due to fresh air inlet 11 so that the most substantially foreign body of spheroiding can enter in housing 10, or the foreign body being smaller in size than the minimum range that fresh air inlet 11 separates enters housing 10.
When distance when between adjacent two flabellums 21 of fan 20 diminishes, air quantity becomes big, has higher cooling effect.If but when the distance between adjacent two flabellums 21 of fan 20 diminishes, foreign body easily snaps in fan 20 affects air motion, even produce the possibility of fan 20 breakage.In order to avoid the damage of fan 20, the minimum range that need to separate by reducing fresh air inlet 11 limits the size of the foreign body can being passed in housing 10 from fresh air inlet 11.And the reduction of the minimum range that fresh air inlet 11 separates necessarily makes the area of fresh air inlet 11 diminish, reduce the effect of cooling.
Therefore, for avoiding foreign body to the damage of fan 20 and to ensure cooling effect.As the preferred scheme of one, specifically, the minimum range that fresh air inlet 11 separates more than or equal to 0.25 and is less than or equal to 1 with the ratio of the minimum interval of adjacent two flabellums 21.
For aerofoil fan, its air-flow velocity is relatively fast, when foreign body enters aerofoil fan, directly clashes into flabellum 21, it is caused damage.As the preferred scheme of one, fan 20 is centrifugal fan.
Substantial amounts of heat can be produced when battery bag 300 inserts when charger 100 is charged, battery bag 300 directly contacts the part heat radiation of air will be very fast, and when charging, battery bag 300 inserts charger 100 necessarily has one side to fit with charger 100, and the heat that radiating effect difference-product tires out will produce impact to battery bag 300 or charger 100.
As the preferred scheme of one, the fresh air inlet 11 on charger 100 is arranged on the position corresponding with battery bag 300.When battery bag 300 inserts, air-flow enters charger 100 through the battery bag 300 fresh air inlet 11 from charger 100 and is discharged by the exhaust vent 12 on charger 100.
After foreign body is entered in housing 10 by fresh air inlet 11, foreign body is discharged in housing 10 for convenience, and as the preferred scheme of one, housing 10 is formed with at least one exhaust vent 12, the ultimate range that the minimum range that exhaust vent 12 separates separates more than fresh air inlet 11.Furthermore, the minimum range that exhaust vent 12 separates is more than the full-size of fresh air inlet 11.
The ultimate principle of the present invention, principal character and advantage have more than been shown and described.Skilled person will appreciate that of the industry, above-described embodiment limits the present invention, the technical scheme that the mode of all employing equivalents or equivalent transformation is obtained the most in any form, all falls within protection scope of the present invention.

Claims (10)

1. a housing, described housing is formed with at least one fresh air inlet;It is characterized in that, described housing is formed with a protuberance in described fresh air inlet edge, and this protuberance is extended to opposite side by the side of the full-size line of described fresh air inlet;Described housing is formed with one in described fresh air inlet edge and is being projected on described full-size line, more than described protuberance, the two ends distance projected in the two ends distance being projected on described full-size line projection with described protuberance corresponding recess, described recess.
Housing the most according to claim 1, it is characterised in that the ultimate range that described housing is separated by described fresh air inlet is less than the full-size of described fresh air inlet.
Housing the most according to claim 1, it is characterised in that described protuberance is positioned at the side of the straight line at the ultimate range place that described housing is separated by described fresh air inlet.
Housing the most according to claim 1, it is characterised in that described protuberance includes one section of circular arc, described recess includes one section of circular arc, and the arc radius of described recess is more than the arc radius of described protuberance.
Housing the most according to claim 1, it is characterised in that described fresh air inlet number more than or equal to 4 and is at least arranged in two row of described protuberance setting in opposite direction.
6. fan and a combination for housing, described housing is formed with at least one fresh air inlet;It is characterized in that, described housing is formed with receiving chamber, and described fan is arranged on described receiving intracavity, and described fan is provided with the flabellum for the multiple separation guiding air to flow;Described housing is formed with a protuberance in described fresh air inlet edge, and this protuberance is extended to opposite side by the side of the full-size line of described fresh air inlet;Described housing is formed with one in described fresh air inlet edge and is being projected on described full-size line, more than described protuberance, the two ends distance projected in the two ends distance being projected on described full-size line projection with described protuberance corresponding recess, described recess.
Housing the most according to claim 6, it is characterised in that the ultimate range that described housing is separated by described fresh air inlet is less than the full-size of described fresh air inlet.
Housing the most according to claim 6, it is characterised in that the minimum range that described fresh air inlet separates more than or equal to 0.25 and is less than or equal to 1 with the ratio of the minimum interval of adjacent two described flabellums.
Housing the most according to claim 6, it is characterised in that described protuberance includes one section of circular arc, described recess includes one section of circular arc, and the arc radius of described recess is more than the arc radius of described protuberance.
Housing the most according to claim 6, it is characterised in that the ultimate range that described fresh air inlet separates is more than or equal to 0.5mm and less than or equal to 2mm.
CN201510567025.4A 2015-05-14 2015-09-08 Housing Pending CN106163170A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510247554 2015-05-14
CN2015102475546 2015-05-14

Publications (1)

Publication Number Publication Date
CN106163170A true CN106163170A (en) 2016-11-23

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Family Applications (1)

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CN201510567025.4A Pending CN106163170A (en) 2015-05-14 2015-09-08 Housing

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Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050207124A1 (en) * 2004-03-16 2005-09-22 Fujitsu Limited Printed circuit board having larger space for electronic components and contributing to efficient cooling
CN101612000A (en) * 2009-07-24 2009-12-30 严跃进 High-efficiency heating container
CN203042126U (en) * 2012-12-04 2013-07-10 邹海峰 Manicure dust collector
CN103427533A (en) * 2013-09-06 2013-12-04 南车株洲电机有限公司 Motor end cover and motor
CN203522441U (en) * 2013-11-05 2014-04-02 得力集团有限公司 Motor provided with cooling device
CN103893890A (en) * 2012-12-27 2014-07-02 北京谊安医疗系统股份有限公司 Anesthetic evaporator
CN204215326U (en) * 2014-11-08 2015-03-18 张思光 A kind of drawing and pulling type computer dustproof case

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050207124A1 (en) * 2004-03-16 2005-09-22 Fujitsu Limited Printed circuit board having larger space for electronic components and contributing to efficient cooling
CN101612000A (en) * 2009-07-24 2009-12-30 严跃进 High-efficiency heating container
CN203042126U (en) * 2012-12-04 2013-07-10 邹海峰 Manicure dust collector
CN103893890A (en) * 2012-12-27 2014-07-02 北京谊安医疗系统股份有限公司 Anesthetic evaporator
CN103427533A (en) * 2013-09-06 2013-12-04 南车株洲电机有限公司 Motor end cover and motor
CN203522441U (en) * 2013-11-05 2014-04-02 得力集团有限公司 Motor provided with cooling device
CN204215326U (en) * 2014-11-08 2015-03-18 张思光 A kind of drawing and pulling type computer dustproof case

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Application publication date: 20161123